I have a constant urge to urinate when i actually don't need to, and when i need to go hardly anything comes out and it's uncomfortably tickly. why?

Bladder infection: It's possible that you have a bladder infection. Your bladder becomes inflamed in an infection and gives you the feeling that you have to go even when you don't. You should see your doctor for a simple urine test which can tell whether you need antibiotics or not.

Probably infection: Increased urinary urgency, increased urinary frequency, and discomfort when urination are all signs of a urinary tract infection (uti). If symptoms of UTI are present, a simple lab test of the urine can be done, and if confirmed, can be typically treated quite readily with antibiotic medication., .